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General
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Target
avast_free_antivirus_setup_online.exe
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Size
257KB
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Sample
240627-fqe4cswelm
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MD5
9111386fa7495c14a3702811be1d4afb
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SHA1
60e14fe16ebb1f1b90a16b0bfa2825f37519e530
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SHA256
429e2049b8c127c9ae8f4869c8c927da4477fc5108c4744fb976902a5f487ae2
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SHA512
eac5d795cc7739f21d3cfc2b36539c895dbdeabc491a21650a1369f0bff556cfb5dedcbf8c894c58f72408ffba8c7e84d10aed303e894d05303104da90e7b2ce
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SSDEEP
3072:S2RaiKg4xmUh1WXHqw/l+qmOELhakVsm3mxB32tLEv8zfdn5f2dZLCozOhhBn+T:S0KgGwHqwOOELha+sm2D2+Uhnguy8
Static task
static1
Behavioral task
behavioral1
Sample
avast_free_antivirus_setup_online.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
avast_free_antivirus_setup_online.exe
Resource
win10v2004-20240508-en
Malware Config
Targets
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Target
avast_free_antivirus_setup_online.exe
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Size
257KB
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MD5
9111386fa7495c14a3702811be1d4afb
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SHA1
60e14fe16ebb1f1b90a16b0bfa2825f37519e530
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SHA256
429e2049b8c127c9ae8f4869c8c927da4477fc5108c4744fb976902a5f487ae2
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SHA512
eac5d795cc7739f21d3cfc2b36539c895dbdeabc491a21650a1369f0bff556cfb5dedcbf8c894c58f72408ffba8c7e84d10aed303e894d05303104da90e7b2ce
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SSDEEP
3072:S2RaiKg4xmUh1WXHqw/l+qmOELhakVsm3mxB32tLEv8zfdn5f2dZLCozOhhBn+T:S0KgGwHqwOOELha+sm2D2+Uhnguy8
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Suspicious use of NtCreateProcessExOtherParentProcess
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Drops file in Drivers directory
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Sets service image path in registry
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Impair Defenses: Safe Mode Boot
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Adds Run key to start application
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Boot or Logon Autostart Execution: Active Setup
Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.
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Checks for any installed AV software in registry
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Downloads MZ/PE file
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Event Triggered Execution: Image File Execution Options Injection
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Writes to the Master Boot Record (MBR)
Bootkits write to the MBR to gain persistence at a level below the operating system.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Drops file in System32 directory
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Event Triggered Execution: Component Object Model Hijacking
Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
3Active Setup
1Registry Run Keys / Startup Folder
2Event Triggered Execution
2Component Object Model Hijacking
1Image File Execution Options Injection
1Pre-OS Boot
1Bootkit
1Privilege Escalation
Boot or Logon Autostart Execution
3Active Setup
1Registry Run Keys / Startup Folder
2Event Triggered Execution
2Component Object Model Hijacking
1Image File Execution Options Injection
1Defense Evasion
Impair Defenses
2Disable or Modify Tools
1Safe Mode Boot
1Modify Registry
6Pre-OS Boot
1Bootkit
1Subvert Trust Controls
1Install Root Certificate
1